Home / 1,980,543.90-2,733,158.79-1,121,269.98

Finding the Fourth Proportional to 1,980,543.90, 2,733,158.79 and 1,121,269.98

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Solution

The fourth proportional to 1,980,543.90, 2,733,158.79 and 1,121,269.98 is: 1,547,357.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,543.90 : 2,733,158.79 = 1,121,269.98 : x
  2. Step 2: Convert to fraction form
    1,980,543.90/2,733,158.79 = 1,121,269.98/x
  3. Step 3: Cross multiply
    1,980,543.90x = 2,733,158.79 × 1,121,269.98
  4. Step 4: Simplify right side
    1,980,543.90x = 3,064,608,901,800.12
  5. Step 5: Solve for x
    x = 3,064,608,901,800.12/1,980,543.90
  6. Step 6: Final answer
    x = 1,547,357.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.